Dear Mailing List,

(version and dovecot -n at the bottom) (Sorry for the bad English in this mail :) )

I'm new to dovecot and wanted to build my own mailserver using dovecot+postfix. I currently have a Problem with Permissions with my mailfolder. I could solve it easily if i set it with chmod to 777. but thats no real solution.

While reading my log files i see a lot messages like: Oct 10 05:19:52 lda(owncloud): Error: user owncloud: Initialization failed: Initializing mail storage from mail_location setting failed: stat(/home/vmail/example.com/owncloud/mail) failed: Permission denied (euid=100(owncloud) egid=1004(owncloud) missing +x perm: /home/vmail, dir owned by 5000:5000 mode=0700) Oct 10 05:19:52 lda(owncloud): Fatal: Invalid user settings. Refer to server log for more information.

So Currently two Users need to acces the mail-folder:

1. The user itself (here: owncloud)
2. The vmail user

I want to use dovecot with virtual users. Now the question is: shouldn't the directory be accessed only by the vmail user? and not by the owncloud user?

Second Quest: If it's correct that the access is made by 2 users: what rights do they need? I Cant add all users to the group vmail and set g+rwx Permissions (every user could read mails from other users, and even edit them!)

Thanks a Lot. Kind Regards,

Marcel

dovecot --version 2.2.13

dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.13.0-37-generic x86_64 Ubuntu 14.04.1 LTS ext4 auth_mechanisms = plain login auth_verbose = yes info_log_path = /var/log/dovecot-info.log log_path = /var/log/dovecot.log mail_home = /home/vmail/example.com/%n mail_location = maildir:/home/vmail/example.com/%n/mail:LAYOUT=fs managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave duplicate namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = username_format=%u scheme=ssha512 /etc/dovecot/passwd.db driver = passwd-file } plugin { sieve = ~/.dovecot.sieve sieve_after = /home/vmail/sieve-after sieve_before = /home/vmail/sieve-before sieve_dir = ~/sieve } protocols = imap sieve service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } } ssl_cert = </etc/ssl/certs/ssl_main.crt ssl_cipher_list = ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AES:RSA+3DES:!ADH:!AECDH:!MD5:!DSS ssl_client_ca_dir = /etc/ssl/certs ssl_key = </etc/ssl/private/ssh_main_insecure userdb { args = uid=5000 gid=5000 home=/home/vmail/example.com/%n driver = static } protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep mail_max_userip_connections = 10 } protocol lda { deliver_log_format = msgid=%m: %$ mail_plugins = sieve postmaster_address = postmaster@example.com quota_full_tempfail = yes rejection_reason = Your message to <%t> was automatically rejected:%n%r }